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This session will go through Spooky House Studios' bumpy ride with its iPhone hit game Rail Maze. First released as Doodle Train, the game was well received by the players, but didn't turn out to be a market success. After analyzing and fixing its flaws, and going through a major rebranding, the game was re-released as Rail Maze. Almost instantly, the game went to the top of Free App charts all over the world and got 5 million downloads in the first month. This session will go through what we did wrong with the Doodle Train, and how we fixed it in Rail Maze and succeeded.